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Device for preventing moisture condensation of closed bus

A technology for sealing busbars and branch circuits, which is applied in the field of anti-condensation devices and devices for preventing closed busbar condensation. It can solve problems such as large power consumption, high sealing performance requirements, and aging of seals, and achieves reduced manufacturing costs. The effect of good complete set of equipment and convenient on-site construction

Inactive Publication Date: 2012-12-19
江苏大全封闭母线有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these three measures have certain defects. The micro positive pressure device prevents external gas, dust, etc. from entering the bus by filling dry air into the bus. The moisture retained inside the busbar during the process, and with the prolongation of the busbar operation time, the seals will age, so it is impossible to ensure an effective internal positive pressure for a long time, resulting in the failure of the anti-condensation device; the hot air maintenance device can only be used in The operation of the bus stop phase, so the internal dryness cannot be ensured during the bus operation phase, and its power consumption is very large; the air drying circulation device achieves the effect of preventing condensation by circulating and drying the gas inside the bus, but the device operates during the bus operation phase. It will cause the internal temperature of the busbar to rise, which will affect the service life of the internal insulating parts and seals of the busbar.

Method used

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  • Device for preventing moisture condensation of closed bus
  • Device for preventing moisture condensation of closed bus
  • Device for preventing moisture condensation of closed bus

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments.

[0020] The present invention solves the problem of dew condensation on the enclosed busbar 5. The enclosed busbar 5 includes a casing 51 and a conductor 52, and is provided with three phases. The present invention includes a dehumidification system 2, a drying system 3, and a control system 4: the dehumidification system 2 includes a gas source cabinet 20, a connecting pipe 21, an air suction branch 24, and an air intake branch 23, and the gas source cabinet 20 includes a fan 201 , cold dryer 202, fan 201 is connected with cold dryer 202, one end of suction branch 24 is connected with fan 201, one end of air intake branch 23 is connected with cold dryer 202, and the other end is connected with closed busbar 5 The outer shell 51 has the following connection modes: a. The suction branch 24 is connected to any one phase closed bus bar 5, and the intake branch 1 23 is respe...

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Abstract

The invention discloses a device for preventing moisture condensation of a closed bus. The device comprises a dehumidifying system, a drying system and a control system. The dehumidifying system includes an air source cabinet, a communication pipe, an air suction branch, and a first air inlet branch, wherein one ends of the air suction branch and the first air inlet branch are connected with the air source cabinet, and the other ends are connected with a case of the closed bus; and the communication pipe is used for connecting the three-phase cases of the closed bus. The drying system includes an air compressor, a heater, an air exhaust branch, and a second air inlet branch, wherein the air compressor is connected with the heater; the second air inlet branch is respectively arranged on the three-phase cases of the closed bus; the other end of the second air inlet branch is connected with the heater; and the air exhaust branch is connected with the case of the closed bus. The control system includes a temperature and humidity sensor, and a PLC (programmable logic controller) control system, wherein the temperature and humidity sensor is respectively arranged in the three-phase cases of the closed bus, and is connected with the PLC control system. The device provided by invention has low requirement for the sealing performance of the bus, can be used under all conditions, and is convenient and intuitive in use and low in maintenance cost.

Description

technical field [0001] The invention relates to a device for preventing dew condensation, in particular to a device for preventing dew condensation in a closed bus bar, belonging to the technical field of power transmission and distribution equipment. Background technique [0002] The closed busbar is the power transmission circuit connected between the generator and the transformer. The reliability of its safe operation is directly related to the stability of the entire power system. How to ensure the long-term effective and safe operation of the closed busbar is a crucial issue. The closed busbars are arranged in a special environment, usually passing through indoors and outdoors. Condensation will occur inside the busbar due to the difference in ambient temperature and humidity, which will reduce the overall insulation performance of the busbar and easily cause major safety hazards such as discharge, flashover and even breakdown. [0003] In order to solve the dew condens...

Claims

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Application Information

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IPC IPC(8): G05D27/02
Inventor 叶纪林黄奎孙兵孔令熙李国敏
Owner 江苏大全封闭母线有限公司
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